Forest floor and soils in limed stands of substitute species in Klasterec nad Ohri forest district in the Krusne hory Mts.
2011
Mensik, L.,Mendelova Univ., Brno (Czech Republic). Ustav Ekologie Lesa | Kula, E.,Mendelova Univ., Brno (Czech Republic). Ustav Ochrany Lesu a Myslivosti
The aim of the paper was to evaluate the chemical composition of humus horizon H and organomineral horizon Ah (soil reaction, sorption complex, C/N ratio, available nutrients) in stands of substitute tree species differently affected by liming and site preparation in the area of Klasterec nad Ohri Forest District in the Krusne hory Mts. (Czech Republic). Based on our evaluations, we found out that pH values increased by 0.3-0.5, which was evident in stands with repeated liming at sites without soil preparation and with the site/soil preparation using an excavator or bulldozer. The majority of soils always showed an unsaturated base-exchange complex (less than 50%). Increasing values of the sorption complex saturation were evident in stands with repeated liming, which is related to the favourable condition of pH in H and Ah horizons. C/N ratios in the H (Ah) horizon were always below a critical limit (less than 24). The content of available nutrients in the H (Ah) horizon was insufficient. Among the particular elements phosphorus content decreased, that of magnesium reached optimum or even surplus, calcium was in surplus (optimum or even surplus), potassium in optimum (surplus).
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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